body{font-family:Arial,sans-serif;background:#f5f5f5;margin:0;padding:1rem;color:#333}main{max-width:900px;margin:auto;background:#fff;padding:2rem;border-radius:10px;box-shadow:0 4px 12px #0000001a}h1{text-align:center;color:#2a2a2a}canvas{display:block;margin:1rem auto;border:1px solid #ccc;border-radius:8px;background-color:#fff;max-width:100%;padding:40px}#coord,#result,#status{text-align:center;margin:.5rem 0;font-weight:700}select,input[type=number],button{padding:.5rem;margin:.25rem 0;font-size:1rem;border-radius:5px;border:1px solid #ccc}input[type=number]{width:120px}button{background-color:#007acc;color:#fff;border:none;cursor:pointer;transition:background .3s ease}button:hover{background-color:#005fa3}.vector-group{display:flex;justify-content:space-around;flex-wrap:wrap;margin-top:1rem}.vector-box{flex:1;margin:1rem;min-width:250px}.vector-box h5{color:#007acc;margin-bottom:.5rem}.vector-box label{display:block;margin:.5rem 0 .2rem;font-weight:700}
